Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 923 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.6 × 9 =
2. 2.57 × 99 =
3. 3.7 × 9 =
4. 4.2 × 9 =
5. 5.655 × 999 =
6. 6.2 × 9 =
7. 7.637 × 999 =
8. 8.483 × 999 =
9. 9.8404 × 999 =
10. 10.28 × 9 =
11. 11.829 × 999 =
12. 12.7 × 9 =
13. 13.2766 × 999 =
14. 14.264 × 9 =
15. 15.82 × 99 =
16. 16.47 × 9 =
17. 17.6981 × 999 =
18. 18.82 × 99 =
19. 19.7 × 999 =
20. 20.7 × 9 =
21. 21.6 × 9 =
22. 22.14 × 9 =
23. 23.3 × 9 =
24. 24.3 × 9 =
25. 25.77 × 9 =
26. 26.32 × 99 =
27. 27.2 × 9 =
28. 28.263 × 9 =
29. 29.12 × 99 =
30. 30.4 × 9 =
31. 31.27 × 99 =
32. 32.9 × 99 =
33. 33.1358 × 99 =
34. 34.7 × 99 =
35. 35.992 × 999 =
36. 36.8 × 9 =
37. 37.18 × 99 =
38. 38.3 × 999 =
39. 39.72 × 99 =
40. 40.4 × 9 =

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